12 
glaucous beneath, with the nerves hardly prominent, rather 
revolute at the edges; carpels ovate oblong ; stigma filiform 
with membranous margins. %. H. Native of North America, 
on banks of rivers, in woody districts, the whole breadth of the 
continent. Hook fl. bor. amer. 3. t. 2. Leaves bi or tripinnate. 
Flowers white, or in many pale-purple, panicled. Th. revolu- 
tum D. C. syst. 1. p. 173. Th. Canadensis, Cornuti Canad. 186. 
t. 187. 
Var. a. revolutum; anthers linear-oblong. 
D. C. syst. 1. p. 173. Var. B. subglabrum. 
Var. B, pubéscens (Ph. fl. amer. sept. 2. p.388.) anthers 
elliptical; leaves velvety, pubescent beneath. Th. corynéllum. 
D. C. syst. 1. p. 172. 
‘ornuti’s Meadow-Rue. Fl. Jul. Aug. Clt. 1806. Pl. 3 to 4 ft. 
11 Tu. piorcum (Lin. spec. 768.) flowers dioecious; filaments 
filiform; leaflets roundish, cordate, smooth, bluntly crenate-lobed, 
glaucous beneath ; peduncles axillary, shorter than the leaves. 
XY. H. Native of North America, in shady grassy places, on the 
banks of rivers from Canada to Virginia and elsewhere. Deless. 
icon. sel. 1. 6.8. Th. lævigàtum, Mich. fl. bor. amer. 1. p. 
322. Plant very smooth. Leaves 3-times trifid. Leaflets 
stalked, glaucous underneath. Panicle branched, somewhat 
corymbose at apex. Flowers white. Pericarps ovate, awnless. 
Dioecious Meadow-Rue. Fl. May, Jul. Clt. 1759. Pl. 1 to 2 ft. 
12 Tu. Carorrnia‘num (Bosc. ined. but not of Walt. D. C. 
syst. 1. p. 174.) flowers dioecious ; filaments filiform; leaflets 
oval, 3—5-toothed, smooth, glaucous underneath; peduncles 
axillary, longer than the leaves. 2{. H. Native of North Ame- 
rica, from Pennsylvania to Carolina, on the banks of rivers and in 
swamps. Th. rugdsum, Pursh fl. amer. sept. 2. p. 388, but not 
of Ait. hort. kew. Flowers white, in divaricating panicles. 
Var. B, subpubéscens (D. C. syst. 1. p. 174.) leaflets, a little 
hairy at the nerves on the under surface. Native of New Jersey. 
Carolinian Meadow-Rue. Fl. June, Aug. Clt. 1818. Pl. 1 to 
2 feet. 
13 Tu. purrura’scens (Lin, spec. 769.) flowers dioecious or 
monoecious ; filaments filiform, colored ; leaflets somewhat or- 
bicular, grossly toothed, glaucous underneath ; panicle contracted, 
almost leafless. 4. H. Native of Pennsylvania and Virginia, on 
dry sunny hills.— Moris. oxon. 3. p. 324. Stems purple. Leaves 
triternate. Panicle of female flowers erect. Ovaries 7, 8. Styles 
long, acute. Stamens purple. 
Var. B, monoicum (D. C. syst. 1. p. 174.) panicle few-flow- 
ered, female flowers at bottom, and male at top of panicle. 
Native of New England. Filaments red. Anthers long, yellow, 
acute. 
Purplish Meadow-Rue. Fl. May, Ju. Clt. 1699. Pl. 1 to 2 ft. 
14 Tu. Java’ntcum (Blum. bijdr. Spreng. syst. append. p. 
221.) Stem 4-sided, striated; leaflets orbicular, smooth, trifid, 
glaucous beneath; panicle forked, corymbose, erect; flowers 
dioecious. Y.S. Native of Java. Flowers yellow. 
Java Meadow-Rue. Fl. June, July. Pl. 3 feet. 
Th. revolutum. 
_§. 2. Gesvina, (genuinus, natural; species all hermaphro- 
dite.) Flowers hermaphrodite. Leaves decompound. Roots 
fibrous. 
15 Tu. rottordsum (D. C. syst. 1. p. 175.) stem round, 
smooth, branched; flowers in corymbose panicles, drooping ; 
leaves quadripinnate ; leaflets somewhat ternate, roundish or cor- 
date, 3-lobed, membranous, smooth ; petioles 3-parted. 2. H. 
Native of Upper Nipaul, at Suembu. Th. Dalinga, Hamilt. 
MSS. Flowers small, yellow. > 
Leafy Meadow-Rue. Fl. May, July. Pl. 1 + to 2 feet. 
= 16 Tu. saxnicuLÆærórme (D. C. prod. 1. p- 12.) stem round- 
ish, branched; flowers few, panicled ; peduncles rigid, divari- 
RANUNCULACEÆ. IV. THALICTRUM. 
cating; sepals reflcxed; pericarps striated, pointed with the 
long inflexed style. 4y. H. Native of Nipaul. 
Sanicula-formed Meadow-Rue. PI. 14 feet. 
17 Tu. peratoipeum (Lin. spec. 770.) stem round, almost 
naked; flowers corymbose ; filaments dilated at the apex; leaf- 
lets smooth, ovate, obtuse, entire or 3-lobed. Y.H. Native 
of the mountains of Dauria, and on Mount Odon-Tchelen on the 
confines of China. Deless. icon. sel. 1. t. 9. Lodd. bot. cab. 891. 
Leaves ternately decompound. Sepals roundish, white. Filaments 
flesh-colored. Anthers yellow. Pericarps 6. 8, sessile, oblong, 
striated. 
Var. B, stamineum (Lin. fil. suppl. 271). 
Petal-like-sepalled Meadow-Rue. FI. June, July. Clt. 1799. 
Pl. 14 feet. 
18 Tu. atrinum (Lin. spec. 767.) stem quite simple, almost 
naked, dwarf; raceme simple, terminal ; flowers nodding ; leaves 
smooth, shining. X4. H. Native of Kamtschatka, Newfound- 
land, Lapland, Greenland, Iceland, Pyrenees, &c. On most of 
the highest mountains in Wales and Scotland. Smith. eng. bot. 
t. 262. Lightf. scot. t. 13. f. 1.; Fl. dan. t.11. A small very 
smooth plant. Leaves chiefly radical, twice ternate and some- 
what pinnate; leaflets wedge-shaped, dark green and shining 
above, glaucous beneath. Sepals whitish, acute. Anthers 
tawny. 
Alpine Meadow-Rue. Fl. May, Jul. Britain. Pl. ¢to 4 ft. 
19 Tu. ra@‘ripum (Lin. spec. 768?) stem simple, naked at the 
base, leafy in the middle, panicled at top; leaves with clammy 
pubescence ; leaflets obtuse, toothed, 2/.H. Native of France, 
Switzerland, Hungary, Siberia, Russia, &c. In valleys, on 
hills, or in the fissures of calcareous rocks. Lam. ill. t. 497. 
f.2. Waldst. and Kit. pl. hung. 2. p. 190. t. 174. Th. styloi- 
deum, Lin. fil. suppl. 271. Th. saxatile, Vill. dauph. 4. p. 714. 
Stem clammy-pubescent, covered with scales at the base instead 
of leaves. Petioles 3-parted. Segments of leaves twice or thrice 
pinnate. Leaflets orbicular, cordate, irregularly 3 to 5-lobed at 
the apex. Panicle erect, spreading, few-flowered. Flowers 
nodding. Anthers yellow. Sepals reddish on the outside. 
Fetid Meadow-Rue. Fl. May, Jul. Clt. 1640. Pl. 1 ft. 
20 Tu. puse’scens (Schl. pl. helv. D. C. syst. 1. p. 176.) 
stem simple, with a few leaves, panicled at top; leaves clammy- 
pubescent. 2. H. Native of Caucasus; about Montpelier, and 
in Lower Vallais, on chalky rocks. Th. Corniti, Poir. dict. 5. 
p- 319, exclusive of the synonymes and countries. Resembles 
Th. fætidum, but with the leaves scattered equally over the stem, 
and with the leaflets more acute. 
_ Pubescent Meadow-Rue. FI. May, July. Clt. 1819. Pl. 2 ft. 
21 Tu. acuti’Lopum (D. C. syst. 1. p. 177.) stem simple, naked 
at the base, leafy in the middle, and panicled at top; leaves pu- 
bescent, viscid ; lobes of leaflets acute. Y. H.Native of Siberia. 
Very like Th. fetidum. Deless. icon. sel. 1. t. 10. 
Acute-lobed Meadow-Rue. Fl. Ju. Jul. Clt. 1820. Pl. 13 ft. 
22 Tu. pive’rcens (Link enum 584.) leaflets ovate-oblong, 
pubescent beneath, bluntly 3-lobed ; branches and petioles divari- 
cating; panicle diverging. Y%.H. Native of Siberia. Th. di- 
varicatum, Spreng. new entd. 1. p. 37. No. 68. Flowers 
yellow. 
Diverging-panicled Meadow-Rue. Fl. Ju. Jul. Cit. 1819. 
Pl. 2 feet. 
23 Tu. Scuwetcce’rr (Spreng. syst. 1. p. 271.) stem erect, 
furrowed ; leaflets ovate, cuneated, multifid and acutely toothed ; 
petioles with stipulas at their base ; filaments capillary, elongated ; 
anthers awned. Y.H. Native of? Flowers yellow. 
Schneigger’s Meadow-Rue. Fl. June, July. Pl. 3 feet. 
24 ‘Tx. seuarròsum (Steph. in Willd. spe. 2. p. 1299.) stem 
round ; flowers panicled, drooping ; petioles stem-clasping, wing- 
ed. X.H. Native of Siberia, Leaves supra-decompound ; 
